My sample weight is 0.02 grams. Instead of using centrifuge I used PBS buffer with serial dilution (10 times). I got some OD values, how to calculate it?
Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...
03 March 2021 1,499 2 View
Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...
03 March 2021 6,299 3 View
Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...
01 March 2021 2,215 2 View
Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.
01 March 2021 9,952 3 View
I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...
01 March 2021 9,015 2 View
I need to extract protein from fermented carbon sources for Bradford assay. Most researchers experiencing insolubility of pellet in resuspension buffer. Please assist me to select most suitable...
26 February 2021 7,129 3 View
Hi all, I have been doing research on biotagged LDB1 proteins in Mel cells. I purify the proteins using M280 streptavidin beads. The yield is very low so I've been trying to optimize it by...
24 February 2021 5,749 3 View
Hi, all! I need to determine if my treatment causes membrane damage in bacteria (S. aureus and E. cloacae), but I cannot use a fluorescent probe such as PI and similar ones because my compound is...
24 February 2021 2,006 2 View
I have radial blade centrifugal fan design which will be mounted on exhaust side of electric traction motor. The fan will be mounted on same motor shaft inside the housing. How can I verify that...
23 February 2021 2,390 3 View
Hi everyone! I try to detect VDR protein (~48 kDa) using Western Blot. After SDS-PAGE using 10% MP TGX Stain-Free Gel from BioRad I transferred the protein onto an metOH activated PVDF membrane...
23 February 2021 6,266 3 View